Question

In the equation of the circle (x + 5)^2+ (y - 3)^2 = 144, what is the center and the radius?.

Answer 1

Answer:

Centre is (-5,3) and radius is 12

Explanation:

We know formula for a circle is :-

(x - h)² + (y - k)² = r²

(x + 5)² + (y - 3)² = 144

On comparison,

x = -5

y = 3

r² =  144 => r = 12